Given the task definition and input, reply with output. In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D". 

[header] How to know if you are being selfish [title] Analyze what others say about your behavior. [step] If you're always thinking about what other people can do for you, you might be selfish. This is especially true if you don't go out of your way to return those favors later. <sep> (A) If you don't think you are being selfish, then you might be selfish for someone else. [substeps] When you make a decision to follow up with someone, you're not selfish for someone else, either. (B) Healthy relationships have an equal (or nearly equal) balance of give and take. [substeps] For instance, if you frequently ask for people to loan you money or cover your shifts at work, but you don't do those things in return, you might be selfish. (C) Is it because of what you did wrong, or is it because of something you did wrong? [substeps] There are many reasons why you might be selfish. Maybe you're tired of being around others. (D) Keeping in mind that selfish people often think and trust themselves. If you are in the habit of acting on such feelings in the present, you are likely not being selfish.

B